{"id":1393,"date":"2011-03-11T14:38:06","date_gmt":"2011-03-11T12:38:06","guid":{"rendered":"http:\/\/nuclearpoweryesplease.org\/blog\/?p=1393"},"modified":"2013-03-01T00:45:08","modified_gmt":"2013-02-28T22:45:08","slug":"den-japanska-jordbavningen-och-karnkraftverken","status":"publish","type":"post","link":"https:\/\/nuclearpoweryesplease.org\/blog\/2011\/03\/11\/den-japanska-jordbavningen-och-karnkraftverken\/","title":{"rendered":"L\u00f6pande uppdateringar om den japanska jordb\u00e4vningen och k\u00e4rnkraftverken"},"content":{"rendered":"<p><strong>Uppdatering 11:59<\/strong><\/p>\n<p>Lite experter spekulerar p\u00e5 Reuters<\/p>\n<blockquote><p><a href=\"http:\/\/www.reuters.com\/article\/2011\/03\/12\/us-japan-quake-experts-idUSTRE72B1BP20110312\" target=\"_blank\">http:\/\/www.reuters.com\/article\/2011\/03\/12\/us-japan-quake-experts-idUSTRE72B1BP20110312<\/a><\/p>\n<div>\n<p>ROBIN GRIMES, PROFESSOR OF MATERIALS PHYSICS AT IMPERIAL COLLEGE LONDON<\/p>\n<p>&#8220;It does seem as if the back-up generators although they started initially to work, then failed,&#8221; Grimes, an expert in radiation damage told BBC TV.<\/p>\n<p>&#8220;So it means slowly the heat and the pressure built up in this reactor. One of the things that might just have happened is a large release of that pressure. If it&#8217;s that then we&#8217;re not in such bad circumstances.<\/p>\n<p>&#8220;Despite the damage to the outer structure, as long as that steel inner vessel remains intact, then the vast majority of the radiation will be contained.<\/p>\n<p>&#8220;At the moment it does seem that they are still contained and it&#8217;s a release of significant steam pressure that&#8217;s caused this explosion. The key will be the monitoring of those radiation levels.&#8221;<\/p>\n<p>PROFESSOR PADDY REGAN, NUCLEAR PHYSICIST FROM BRITAIN&#8217;S SURREY UNIVERSITY<\/p>\n<p>&#8220;What is important is where that explosion is,&#8221; Regan told Sky News.<\/p>\n<p>&#8220;It&#8217;s not clear what has exploded. The big problem would be if the pressure vessel has exploded but that does not look as though that&#8217;s what&#8217;s happened.<\/p>\n<p>&#8220;If the pressure vessel, which is the thing that actually holds all the nuclear fuel &#8230; if that was to explode &#8212; that&#8217;s basically what happened at Chernobyl &#8212; you get an enormous release of radioactive material.<\/p>\n<p>&#8220;It doesn&#8217;t look from the television pictures &#8230; as though it&#8217;s the vessel itself.<\/p>\n<p>He said media reports suggested that a small fraction of the nuclear fuel might have melted at the core of the reactor which would not be surprising.<\/p>\n<p>NUCLEAR EXPERT MARK HIBBS OF THE CARNEGIE ENDOWMENT FOR INTERNATIONAL PEACE<\/p>\n<p>&#8220;We don&#8217;t have any information from inside the plant. That is the problem in this case.<\/p>\n<p>&#8220;If it melts down the probability that there would be a breach or that radiation would get outside of the plant because of weakness of the structure of the plant &#8230; is much greater.&#8221;<\/p>\n<\/div>\n<\/blockquote>\n<p><strong>Uppdatering 11:06<\/strong><\/p>\n<p>Video av explosionen, det \u00e4r sv\u00e5rt att se vad som exploderat<\/p>\n<p><a href=\"http:\/\/www.bbc.co.uk\/news\/world-asia-pacific-12721498\">http:\/\/www.bbc.co.uk\/news\/world-asia-pacific-12721498<\/a><\/p>\n<p><!--more--><\/p>\n<p><strong>Uppdatering 10:58<\/strong><\/p>\n<p><strong><a href=\"http:\/\/www.svd.se\/nyheter\/utrikes\/risk-for-hardsmalta-i-japan_6001247.svd\">http:\/\/www.svd.se\/nyheter\/utrikes\/risk-for-hardsmalta-i-japan_6001247.svd<\/a><\/strong><\/p>\n<p>TOKYO (<a href=\"http:\/\/e.nikkei.com\/e\/fr\/tnks\/Nni20110312D12JF516.htm\">Dow Jones<\/a>)\u2013An explosion was heard and white smoke was seen around the Fukushima Daiichi nuclear power plant late Saturday afternoon in Japan, though the cause and exact location of the event were not immediately clear, according to Japan\u2019s national broadcaster NHK.\u00a0\u00a0 Several people appeared to have been injured in the incident, NHK said.<\/p>\n<p>Reuters \u2013 Japan Chief Cabinet Secretary Edano: expands evacuation area at no.2 plant to 10 km.<\/p>\n<p><strong>Bloomberg<\/strong> <a href=\"http:\/\/www.bloomberg.com\/news\/2011-03-12\/japan-reactor-fuel-rods-may-have-begun-to-melt-atomic-safety-agency-says.html\">Reactor Fuel Rods May Have Started to Melt<\/a> 2011 03 12 | 0345 EST<\/p>\n<p>A nuclear reactor in the Fukushima Dai-Ichi power station about 220 kilometers (140 miles) north of Tokyo may be starting to melt down after Japan\u2019s biggest earthquake on record hit the area yesterday.<\/p>\n<p>Fuel rods at the No. 1 reactor at the plant run by Tokyo Electric Power Co. may be melting after radioactive Cesium material left by atomic fission was detected near the site, Nuclear and Industrial Safety Agency, spokesman Yuji Kakizaki said by phone today.<\/p>\n<p>\u201cIf the fuel rods are melting and this continues, a reactor meltdown is possible,\u201d Kakizaki said. A meltdown refers to a heat buildup in the core of such an intensity it melts the floor of the reactor containment housing.<\/p>\n<p><strong>Wall Street Journal <\/strong>&#8211;\u00a0<a href=\"http:\/\/online.wsj.com\/article\/SB10001424052748703555404576195700301455480.html\">Japan Scrambles to Avert Meltdown<\/a> \u2013 |2011 03 12 | 0252 EST<\/p>\n<p>TOKYO\u2014Emergency measures taken to avert a meltdown at a nuclear power plant hit by Friday\u2019s massive earthquake in northern Japan appear to be working, the plant\u2019s operator said after earlier warning that it faced a meltdown threat.<\/p>\n<p>Workers are bringing down dangerous pressures that had built up in the container for the Fukushima Daiichi No. 1 nuclear reactor, a spokesman for Tokyo Electric Power Co. said Saturday afternoon.<\/p>\n<p>\u201cThe steps we have taken through relieving the pressure inside the container and adding additional water to cool the rods appear to be succeeding in averting any damage to the reactor core, which was our main priority,\u201d said a Tepco spokesman.<\/p>\n<p>Previously, the utility had said there was a risk of a meltdown in the core after the quake cut off power to pumps providing cooling water. That, in turn, could lead to heating of the core, the risk of a meltdown, and the release of radiation.<\/p>\n<p>A portion of the reactor\u2019s fuel rods, which create heat through a nuclear reaction, had become exposed due to the cooling-system failure. The spokesman for Tepco said 1.5 meters of the 4.5 meter long fuel rods were exposed. It was unclear Saturday afternoon whether the water added by workers had re-covered the rods.<\/p>\n<p>Loss of cooling water resulted in a near meltdown of the Three Mile Island reactor in Pennsylvania in 1979, the worst nuclear incident in U.S. history.<\/p>\n<p>Asked about the impact of radiation at eight times higher than normal levels, Naoto Sekimura, a professor of quantum engineering at Tokyo University, said on national broadcaster NHK, \u201cThis is a minuscule amount. This is not going to have negative impact on the human body.\u201d<\/p>\n<p>Later on Saturday, Tokyo Electric said another nuclear-power plant nearby, Fukushima Daini, was experiencing rises of pressure inside its four reactors. A state of emergency was called and precautionary evacuations ordered. The government has ordered the utility to release \u201cpotentially radioactive vapor\u201d from the reactors, but hasn\u2019t confirmed any elevated radiation around the plant.<\/p>\n<p><strong>Uppdatering 00:14<\/strong><\/p>\n<p><a href=\"http:\/\/english.kyodonews.jp\/news\/2011\/03\/76965.html\">http:\/\/english.kyodonews.jp\/news\/2011\/03\/76965.html<\/a><\/p>\n<p>Japan&#8217;s nuclear safety agency is set to issue an unprecedented order for Tokyo Electric Power Co. to open a valve at the troubled Fukushima No. 1 nuclear power plant to release pressure following a powerful earthquake, it said Saturday.<\/p>\n<p><strong>Kommentar <\/strong><br \/>\nNu verkar det som man kommer k\u00f6ra med ventileringen av inneslutningsbyggnaden som det har pratats om. Vad som kommer ske d\u00e5 \u00a0\u00e4r att man \u00f6ppnar n\u00e5gon slags n\u00f6dventil som \u00e4r kopplade till diverse filtersystem gjorda f\u00f6r att snappa upp flyktiga radionuklider som jod odyl. Det har inte rapporterats om att vattenniv\u00e5n i h\u00e4rden ska ha sjunkit under niv\u00e5n f\u00f6r br\u00e4nslestavarna under n\u00e5gon del av processen hittills, d\u00e4rmed s\u00e5 borde br\u00e4nslet vara i stort sett intakt. Om det st\u00e4mmer s\u00e5 kan det inte finnas s\u00e4rskilt mycket radionuklider i inneslutningen och ventileringen l\u00e4r ha ringa, om n\u00e5gon, p\u00e5verkan p\u00e5 omgivningen.\u00a0<strong> <\/strong><\/p>\n<p><strong>Uppdatering 00:05<\/strong><\/p>\n<p>Reuters<br \/>\n<a href=\"http:\/\/live.reuters.com\/Event\/Japan_earthquake2\">http:\/\/live.reuters.com\/Event\/Japan_earthquake2<\/a><\/p>\n<p>Power company TEPCO says it has lost the ability to control reactor pressure at Fukushima No. 1 and No.2 reactors. A spokesman said pressure is stable inside the reactors but is rising in the containment vessels. He said it is not known if there will be a need to release pressure at the plant at this point. That would involve a release of radiation.<\/p>\n<p><strong>Uppdatering 23:08<\/strong><\/p>\n<p>F\u00f6r att ge lite snabbt perspektiv p\u00e5 siffran 1000ggr normal niv\u00e5. Normal niv\u00e5 om det vore Sverige \u00e4r 3-5 mSv(milli sievert) per \u00e5r. Om vi antar att samma g\u00e4ller i Japan s\u00e5 blir det allts\u00e5 8-14 mSv per dag. Gr\u00e4nsen f\u00f6r vad en k\u00e4rnkraftsarbetare f\u00e5r lagligt sett uts\u00e4ttas f\u00f6r \u00e4r 20 mSv per \u00e5r. S\u00e5 8-12 mSv \u00e4r en relativt h\u00f6g siffra, men l\u00e5ngt ifr\u00e5n omedelbart skadligt. F\u00f6r omedelbara effekter m\u00e5ste man komma upp i ungef\u00e4r 1000 mSv(100 dagar med den str\u00e5lningsniv\u00e5 som nu r\u00e5der).<\/p>\n<p><strong>Uppdatering 22:52<\/strong><\/p>\n<p><strong><a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/nytt-forsok-kyla-reaktorn\">http:\/\/www.dn.se\/nyheter\/varlden\/nytt-forsok-kyla-reaktorn<\/a><\/strong><\/p>\n<p><a href=\"http:\/\/english.kyodonews.jp\/news\/2011\/03\/76948.html\">http:\/\/english.kyodonews.jp\/news\/2011\/03\/76948.html<\/a><\/p>\n<p>The amount of radiation reached around 1,000 times the normal level Saturday in the control room of the No. 1 reactor of the Fukushima No. 1 nuclear power plant, the Nuclear and Industrial Safety Agency said.<\/p>\n<p>The discovery suggests radioactive steam could spread around the facility operated by Tokyo Electric Power Co.<\/p>\n<p>Kommentar<\/p>\n<p>Jag har inte lyckats hitta n\u00e5gon information om detta \u00e4r pga avsiktlig ventilering av inneslutningen.<\/p>\n<p><strong>Uppdatering 22:45<\/strong><\/p>\n<p><a href=\"http:\/\/www.cnn.com\/2011\/WORLD\/asiapcf\/03\/11\/japan.nuclear\/index.html?hpt=T1\">http:\/\/www.cnn.com\/2011\/WORLD\/asiapcf\/03\/11\/japan.nuclear\/index.html?hpt=T1<\/a><br \/>\nEarly Saturday morning, Prime Minister Naoto Kan said that the evacuation order had been extended to those within 10 kilometers of the plant.<\/p>\n<p><strong>Uppdatering 22:20<\/strong><\/p>\n<p>DN verkar ha best\u00e4mt sig f\u00f6r att faktiskt skriva ut lite mer av vad Gunsell m\u00e5ste ha sagt, ist\u00e4llet f\u00f6r att f\u00f6rs\u00f6ka enbart skr\u00e4mmas.<\/p>\n<p><a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/nytt-forsok-kyla-reaktorn\">http:\/\/www.dn.se\/nyheter\/varlden\/nytt-forsok-kyla-reaktorn<\/a><\/p>\n<p><a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/nytt-forsok-kyla-reaktorn\"><\/a><\/p>\n<p><a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/nytt-forsok-kyla-reaktorn\"><\/a><\/p>\n<p><strong>Om inte kylsystemet<\/strong> kommer i g\u00e5ng \u00e4r risken uppenbar f\u00f6r en h\u00e4rdsm\u00e4lta, sade tidigare p\u00e5 fredagen Lars Gunsell, utredare vid Str\u00e5ls\u00e4kerhetsmyndigheten (SSM) i Stockholm.<\/p>\n<p>\u2013 Systemet i k\u00e4rnkraftverket \u00e4r avst\u00e4ngt men en reaktorh\u00e4rd forts\u00e4tter att alstra v\u00e4rme l\u00e5ng tid efter\u00e5t. Och kyls den inte av sm\u00e4lter den.<\/p>\n<p>Han p\u00e5pekar samtidigt att en h\u00e4rdsm\u00e4lta i anl\u00e4ggningen troligen inte skulle inneb\u00e4ra n\u00e5gra stora faror f\u00f6r omgivningen.<\/p>\n<p>\u2013 Reaktorn ligger inne i kraftig betongbyggnad. S\u00e5 \u00e4ven om h\u00e4rden sm\u00e4lter kommer inte s\u00e4rskilt mycket att komma ut i kringliggande omr\u00e5den. Ett mindre utsl\u00e4pp kan det bli fr\u00e5gan om, men inget stort.<\/p>\n<p><strong>Uppdatering 22:02<\/strong><\/p>\n<p><a href=\"http:\/\/www.tepco.co.jp\/en\/press\/corp-com\/release\/11031207-e.html\">http:\/\/www.tepco.co.jp\/en\/press\/corp-com\/release\/11031207-e.html<\/a><\/p>\n<pre>Today at approximately 2:46PM, turbines and reactors of Tokyo Electric Power\r\nCompany's Fukushima Daiichi Nuclear Power Station Unit 1 (Boiling Water\r\nReactor, rated output 460 Megawatts) and Units 2 and 3 (Boiling Water\r\nReactor, Rated Output 784 Megawatts) that had been operating at rated\r\npower automatically shutdown due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake.\r\n(already announced)\r\n\r\nAt this moment, we have decided to implement measures to reduce the pressure\r\nof the reactor containment vessel for those units that cannot confirm certain\r\nlevel of water injection by the Reactor Core Isolation Cooling System, in\r\norder to fully secure safety.\r\n\r\nWe will endeavor to restore the units and continue monitoring the environment\r\nof the site periphery.<\/pre>\n<p><strong>Uppdatering 20:40<\/strong><\/p>\n<p>Statusuppdatering fr\u00e5n TEPCO om deras reaktorer <a href=\"http:\/\/www.tepco.co.jp\/en\/press\/corp-com\/release\/11031203-e.html\">http:\/\/www.tepco.co.jp\/en\/press\/corp-com\/release\/11031203-e.html<\/a><\/p>\n<pre>Unit 1 (shut down due to earthquake)\r\n- Reactor was shut down and nuclear steam is cooled by the isolation condenser.\r\n- Currently, there is a possibility of a release of radioactive materials\r\n  due to decrease in reactor water level.  Therefore, the national government\r\n  has instructed evacuation for those local residents within 3km radius of\r\n  the periphery and indoor standby for those local residents between 3km and\r\n  10km radius of the periphery.\r\n\r\nUnit 2 (shut down due to earthquake)\r\n- Reactor was shut down and although nuclear steam had been cooled by the\r\n  Reactor Core Isolation Cooling system, the current operating status is\r\n  unclear.  However, reactor coolant level can be monitored by a temporary\r\n  power supply and the level is stable.\r\n- Currently, there is a possibility of a release of radioactive materials\r\n  due to decrease in reactor water level.  Therefore, the national government\r\n  has instructed evacuation for those local residents within 3km radius of\r\n  the periphery and indoor standby for those local residents between 3km and\r\n  10km radius of the periphery.\r\n\r\nUnit 3 (shut down due to earthquake)\r\n- Reactor was shut down and is cooled by the Reactor Core Isolation Cooling\r\n  system.\r\n- Currently, we do not believe there is any reactor coolant leakage inside\r\n  the reactor containment vessel.\r\n\r\nUnit 4 (shut down due to earthquake)\r\n- Reactor has been shut down and sufficient level of reactor coolant to\r\n  ensure safety is maintained.\r\n- Currently, we do not believe there is any reactor coolant leakage inside\r\n  the reactor containment vessel.\r\n\r\nUnit 5 (outage due to regular inspection)\r\n- Reactor has been shut down and sufficient level of reactor coolant to\r\n  ensure safety is maintained.\r\n- Currently, we do not believe there is any reactor coolant leakage inside\r\n  the reactor containment vessel.\r\n\r\nUnit 6 (outage due to regular inspection)\r\n- Reactor has been shut down and sufficient level of reactor coolant to\r\n  ensure safety is maintained.\r\n- Currently, we do not believe there is any reactor coolant leakage inside\r\n  the reactor containment vessel.\r\n\r\nWe measured radioactive materials inside and outside of the periphery of\r\nthe nuclear power station (outdoor area) by monitoring car and confirmed\r\nthat there was no difference from ordinary level.\r\n\r\nNo radiation impact to the external environment has been confirmed.\r\nWe will continue to monitor in detail the possibility of radioactive material\r\nbeing discharged from exhaust stack or discharge canal.\r\n\r\nTwo subcontract workers were injured in the nuclear power station premise.\r\nOne with a broken bone was transported to the hospital by an ambulance and\r\nthe other by a company car.\r\nFurther, there are 2 TEPCO employees whose presence has not been confirmed.\r\n\r\nWe are presently checking on the site situation of each plant while keeping\r\nthe situation of aftershock and Tsunami in mind.<\/pre>\n<p><strong>Uppdatering 20:23<\/strong><\/p>\n<p><a href=\"http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html\">http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html<\/a><\/p>\n<p>Almost nine hours later, an announcement from the Ministry of Economy, Trade and Industry said that three of four mobile power supplies had arrived at Fukushima Daiichi and cables were being set up to supply emergency power. Other power modules were in transit by air.<\/p>\n<p>However, pressure inside the containment of Unit 1 at Fukushima Daichi\u00a0had been steadily increasing over the time that emergency core cooling systems have not been active. Tepco reported at 2am that pressure had increased\u00a0beyond reference levels but was within engineered limits.<\/p>\n<p>The company then announced a decision to reduce the pressure within containment &#8220;for those units that cannot confirm certain level of water injection&#8221; by the safety systems. &#8220;We will endeavor to restore the units and continue monitoring the environment of the site periphery.&#8221;<\/p>\n<p><a href=\"http:\/\/ansnuclearcafe.org\/2011\/03\/11\/media-updates-on-nuclear-power-stations-in-japan\/\">http:\/\/ansnuclearcafe.org\/2011\/03\/11\/media-updates-on-nuclear-power-stations-in-japan\/<br \/>\n<\/a><\/p>\n<p>Another official at the nuclear safety agency, Yuji Kakizaki, said that plant workers were cooling the reactor with a secondary cooling system, which is not as effective as the regular cooling method.<\/p>\n<p>Kakizaki said officials have confirmed that the emergency cooling system \u2014 the last-ditch cooling measure to prevent the reactor from the meltdown \u2014 is intact and could kick in if needed.<\/p>\n<p>\u201cThat\u2019s as a last resort, and we have not reached that stage yet,\u201d Kakizaki added.<\/p>\n<p><strong>Kommentar<\/strong><\/p>\n<p>Om trycket i inneslutningen stiger f\u00f6r mycket s\u00e5 finns det spr\u00e4ngbleck som brister s\u00e5 att trycket kan s\u00e4nkas, om det sker s\u00e5 leds den utbl\u00e5sande luften genom l\u00e5nga filter(f\u00f6rmodar att reaktorn i fr\u00e5ga har liknande filter i inneslutningen som vi har i Sverige) f\u00f6r att eliminera alla radioaktiva gaser som kan finnas i inneslutningen ifall reaktork\u00e4rlet eller n\u00e5gon ledning l\u00e4cker. Dock s\u00e5 kan lite radioaktiva \u00e4delgaser slippa igenom filtren, men precis som man s\u00e5g vid TMI olyckan i Harrisburg s\u00e5 \u00e4r det inget st\u00f6rre problem.<\/p>\n<p><strong>Uppdatering 18:06<\/strong><\/p>\n<p>De mobila dieselgeneratorerna har anl\u00e4nt till Fukushima.<\/p>\n<p><strong><a href=\"http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html\">http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html<\/a><\/strong><\/p>\n<p>Almost nine hours later, an announcement from the Ministry of Economy, Trade and Industry said that three of four mobile power supplies had arrived at Fukushima Daiichi and cables were being set up to supply emergency power. Other power modules were in transit by air.<\/p>\n<p><strong>Uppdatering 17:39<\/strong><\/p>\n<p>DN p\u00e5st\u00e5r att SSM varnar f\u00f6r h\u00e4rdsm\u00e4lta<br \/>\n<a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/2-000-evakueras-vid-karnkraftverk\">http:\/\/www.dn.se\/nyheter\/varlden\/2-000-evakueras-vid-karnkraftverk<\/a><\/p>\n<p><a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/2-000-evakueras-vid-karnkraftverk\"><br \/>\n<\/a><br \/>\nJag har sv\u00e5rt att tro att det \u00e4r ett officiellt uttalande fr\u00e5n SSM. Det m\u00e5ste vara en f\u00f6rvridning av vad Gunsell sagt. Det finns ingenting nu som tyder p\u00e5 att det \u00e4nnu \u00e4r n\u00e5gon risk f\u00f6r h\u00e4rdsm\u00e4lta. Den f\u00f6rsta och mest kritiska timmen var h\u00e4rden kyld med dieselaggregaten och efter\u00e5t verkar det som att den batteridrivna n\u00f6dkylningen har varit aktiv. Att d\u00e5 spekulera om h\u00e4rdsm\u00e4lta \u00e4r v\u00e4ldigt of\u00f6rsiktigt. Att dessutom dra\u00a0paralleller\u00a0till Tjernobyl \u00e4r helt obegripligt, \u00e4ven vid en total h\u00e4rdsm\u00e4lta s\u00e5 bli det inte tal om n\u00e5got nytt Tjernobyl. Sm\u00e4ltan h\u00e5lls effektiv inne av inneslutningsbyggnaden. Det \u00e4r enbart om h\u00e4rdsm\u00e4lta dels lyckas sm\u00e4lta igenom reaktork\u00e4rlet och dels om inneslutningsbyggnaden \u00e4r trasig som n\u00e5got slags utsl\u00e4pp kan ske. Inte ens h\u00e4rdsm\u00e4ltan vid TMI i Harrisburg lyckades sm\u00e4lta sig igenom reaktork\u00e4rlet.<\/p>\n<p>Vad som ligger bakom detta uttalandet fr\u00e5n DN \u00e4r fullst\u00e4ndigt obegriplig och oansvarigt! Det \u00e4r uppenbart att SSM&#8217;s ord m\u00e5ste ha f\u00f6rvr\u00e4ngts.<\/p>\n<p><strong>Uppdatering 17:31<\/strong><\/p>\n<p><a href=\"http:\/\/www.reuters.com\/article\/2011\/03\/11\/japan-quake-nuclear-pumping-idUSLDE72A1US20110311\">http:\/\/www.reuters.com\/article\/2011\/03\/11\/japan-quake-nuclear-pumping-idUSLDE72A1US20110311<\/a><\/p>\n<p>(Reuters) &#8211; The World Nuclear Association, the main nuclear industry body, said on Friday that it understood the situation at\u00a0<a title=\"Full coverage of Japan\" href=\"http:\/\/www.reuters.com\/places\/japan\">Japan<\/a>&#8216;s Fukushima plant after a massive earthquake was under control, and water was being pumped into its cooling system.<\/p>\n<p>&#8220;We understand this situation is under control,&#8221; an analyst at the association told Reuters.<\/p>\n<p>The Japanese government had declared an emergency situation around the plant as a precaution and evacuated residents, saying a cooling system was not working.<\/p>\n<p>The analyst said he understood that a back-up battery power system had been brought online after about an hour, and begun pumping water back into the cooling system, where the water level had been falling. (Reporting by\u00a0<a href=\"http:\/\/blogs.reuters.com\/search\/journalist.php?edition=us&amp;n=karolin.schaps&amp;\">Karolin Schaps<\/a>; Writing by\u00a0<a href=\"http:\/\/blogs.reuters.com\/search\/journalist.php?edition=us&amp;n=kevin.liffey&amp;\">Kevin Liffey<\/a>)<\/p>\n<p><strong>Uppdatering 16:44<\/strong><\/p>\n<div>\n<div><a title=\"Michael van Poppel\" href=\"http:\/\/twitter.com\/#!\/mpoppel\">@mpoppel<\/a>Michael van Poppel<\/div>\n<\/div>\n<p>REU: LONDON-WORLD NUCLEAR INDUSTRY ASSOCIATION SAYS IT UNDERSTANDS WATER BEING PUMPED BACK INTO COOLING SYSTEM AT FUKUSHIMA<\/p>\n<p><strong>Uppdatering 16:20<\/strong><\/p>\n<p>L\u00e4get b\u00f6rjar klarna lite. Dieselgeneratorerna f\u00f6r kylningssystemet fungerade i ungef\u00e4r en timme. Sen dog dom av ok\u00e4nd anledning, men det \u00e4r den f\u00f6rsta timmen som \u00e4r mest kritisk. Restv\u00e4rmeproduktionen fr\u00e5n s\u00f6nderfall av fissionsprodukter faller exponentiellt. Nu har det g\u00e5tt \u00f6ver 8 timmar och man har lyckats h\u00e5lla h\u00e4rdarna kylda under hela den perioden. Sannolikheten att n\u00e5tt ska g\u00e5 snett nu verkar v\u00e4ldigt liten. Portabla n\u00f6dgeneratorer \u00e4r p\u00e5 v\u00e4g till kraftverket.<\/p>\n<p><strong>Uppdatering 16:17<\/strong><\/p>\n<p><a href=\"http:\/\/twitter.com\/#!\/SkyNewsBreak\">http:\/\/twitter.com\/#!\/SkyNewsBreak<\/a><\/p>\n<p>Jiji News: Fukushima nuclear reactor cooling system expected to be restored soon.<\/p>\n<p><strong>Uppdatering 15:38<br \/>\n<\/strong><br \/>\n<a href=\"http:\/\/www.jaif.or.jp\/english\/aij\/member\/2011\/2011-03-11earthquake4.pdf\">http:\/\/www.jaif.or.jp\/english\/aij\/member\/2011\/2011-03-11earthquake4.pdf<br \/>\n<\/a><\/p>\n<div>However, the reactor core still has a sufficient amount of water for cooling, with no<\/div>\n<div>danger of the nuclear fuel being exposed. Several emergency generator vehicles have<\/div>\n<div>rushed to the scene to provide the necessary power for the water supply.<\/div>\n<div>At a press conference, Chief Cabinet Secretary Yukio Edano stressed that while there<\/div>\n<div>was no confirmation of radiation leaking from the reactor, with sufficient time remaining<\/div>\n<div>for its restoration, the government would direct residents living with a 3-km radius to<\/div>\n<div>evacuate, and other residents living outside that limit but within a 10-km radius would<\/div>\n<div>be urged to stand by at home.<\/div>\n<p>However, the reactor core still has a sufficient amount of water for cooling, with nodanger of the nuclear fuel being exposed. Several emergency generator vehicles haverushed to the scene to provide the necessary power for the water supply.At a press conference, Chief Cabinet Secretary Yukio Edano stressed that while therewas no confirmation of radiation leaking from the reactor, with sufficient time remainingfor its restoration, the government would direct residents living with a 3-km radius toevacuate, and other residents living outside that limit but within a 10-km radius wouldbe urged to stand by at home.<\/p>\n<p><strong>Uppdatering 15:32<\/strong><\/p>\n<p><a href=\"http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html\">http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html<br \/>\n<\/a><\/p>\n<p>Tokyo Electric Power Company (Tepco) has reported that emergency diesel generators started as expected at the Fukushima Daiichi nuclear power plant, but then stopped after one hour, leaving units 1, 2 and 3 with no power for important cooling functions. This led the company to notify the government of an &#8217;emergency&#8217; situation, which allows local authorities to take additional precautionary measures.\u00a0An evacuation has been ordered of people living within three kilometres, while engineers work to restore power.<\/p>\n<p>At neighbouring Fukushima Daini, sufficient cooling water is being maintained by injection using the reactor core isolation cooling systems of units 1 to 4. At unit 1 an increase in reactor containment pressure has been noted, and &#8220;assumed to be caused by leakage of reactor coolant in the reactor containment&#8221; this led\u00a0Tepco to notify government of another emergency status.<\/p>\n<p><strong>Uppdatering 15:30<\/strong><\/p>\n<p>Fr\u00e5n CNN<br \/>\nhttp:\/\/www.cnn.com\/2011\/WORLD\/asiapcf\/03\/11\/japan.nuclear\/<\/p>\n<p>(CNN) \u2014 Workers at a nuclear power plant in north-central Japan are having trouble cooling the reactor and authorities have asked nearby residents to evacuate, Chief Cabinet Secretary Yukio Edano said at a news conference Friday.<\/p>\n<p>The Fukushima Nuclear Power Plant was shut down after the earthquake that hit the country.<\/p>\n<p>\u201c<strong>This is a precautionary instruction for people to evacuate<\/strong>. There is no radioactive leakage at this moment outside of the facility,\u201d he said. \u201cAt this moment there is no danger posed to the environment.\u201d<\/p>\n<p>Japan declared a state of atomic power emergency after the earthquake, the Kyodo News agency reported. The government is sending senior officials and a defense force team to the power plant, it said.<\/p>\n<p>Edano said plant workers were having trouble generating sufficient electricity to pump water into the cooling system. They were using all available backup electricity, he said.<\/p>\n<p>\u201cThe emergency shutdown has been conducted but the process of cooling down the reaction is currently not going as planned,\u201d he said.<\/p>\n<p><strong>Uppdatering 15:26<\/strong><\/p>\n<p>Den stora tragedin kan kanske vara explosionen i petrokemifabriken i Sendai. 70 000 personer evakuerade. L\u00e5t oss hoppas det inte blir till ett nytt Bhopal!<\/p>\n<p><a href=\"http:\/\/twitter.com\/#!\/mpoppel\">http:\/\/twitter.com\/#!\/mpoppel<\/a><br \/>\nKyodo: 60,000-70,000 people evacuate to shelters in Sendai city: GSD<\/p>\n<p><strong>Uppdatering 15:23<\/strong><\/p>\n<p>Japan Atomic Industrial Forum uppdaterar om l\u00e4get en g\u00e5ng i timmen<\/p>\n<p><a href=\"http:\/\/www.jaif.or.jp\/english\/index.php\">http:\/\/www.jaif.or.jp\/english\/index.php<\/a><\/p>\n<p><strong>Uppdatering 15:17<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong><a href=\"http:\/\/twitter.com\/#!\/mpoppel\">http:\/\/twitter.com\/#!\/mpoppel<\/a> <\/strong><\/p>\n<p>Kyodo: Fukushima Pref. says enough water to cover fuel rods at nuke plant<\/p>\n<p><strong>Uppdatering 15:10<\/strong><\/p>\n<p><a href=\"http:\/\/ansnuclearcafe.org\/2011\/03\/11\/media-updates-on-nuclear-power-stations-in-japan\/\">http:\/\/ansnuclearcafe.org\/2011\/03\/11\/media-updates-on-nuclear-power-stations-in-japan\/<\/a><\/p>\n<p><strong>NucNet<\/strong> \u2013 11 Reactors shut down in Japan 2011 03 11 0817 EST<\/p>\n<p>TOKYO, March 11 (Xinhua) \u2014 Japanese Prime Minister Naoto Kan on Friday declared a state of atomic power emergency after an earthquake hit Japan\u2019s northeastern Honshu island, but he denied there are any radiation leaks.<\/p>\n<p>Chief Cabinet Secretary Yukio Edano said some cooling functions were not working at the plant and one reactor cannot be cooled down.<\/p>\n<p>Separately, a fire broke out at a nuclear power plant in Miyagi Prefecture following the massive quake. Tokyo Electric Power Co. said that the fire started detected at a building housing the turbine at its Onagawa plant but denied any radiation leaks.<\/p>\n<p>According to the ministry, 11 nuclear reactors were automatically shut down at the Onagawa plant, Fukushima No. 1 and No. 2 plants and Tokai No. 2 plant.<\/p>\n<p><strong>Uppdatering 14:58<\/strong><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong><span style=\"font-weight: normal;\">American Nuclear Society k\u00f6r en l\u00f6pande uppdatering av situationen h\u00e4r.<\/span><\/strong><\/p>\n<p><strong><a href=\"http:\/\/ansnuclearcafe.org\/2011\/03\/11\/media-updates-on-nuclear-power-stations-in-japan\/\">http:\/\/ansnuclearcafe.org\/2011\/03\/11\/media-updates-on-nuclear-power-stations-in-japan\/<\/a> <\/strong><\/p>\n<p><strong>Uppdatering 14:56<\/strong><\/p>\n<p><a href=\"http:\/\/www.reuters.com\/article\/2011\/03\/11\/japan-quake-reactor-idUSL3E7EB1K020110311\">http:\/\/www.reuters.com\/article\/2011\/03\/11\/japan-quake-reactor-idUSL3E7EB1K020110311<br \/>\n<\/a><\/p>\n<p>(Reuters) &#8211; A cooling system for a nuclear reactor was not working after a powerful earthquake in\u00a0<a title=\"Full coverage of Japan\" href=\"http:\/\/www.reuters.com\/places\/japan\">Japan<\/a>, prompting the government to declare an emergency situation as a precaution although it said there was no radioactive leakage at present.<\/p>\n<p>Residents that live within a 3 km radius of Tokyo Electric Power&#8217;s Fukushima Daiichi nuclear plant have been told to evacuate, Japan&#8217;s Chief Cabinet Secretary Yukio Edano told a news conference.<\/p>\n<p>TEPCO confirmed that water levels inside the reactors at its Fukushima-Daiichi nuclear plant were on a falling trend, but added it was working to maintain water levels to avert the exposure of nuclear fuel rods.<\/p>\n<p>The company has been trying to restore power to its emergency power system so that it can add water to the inside of the reactors, a TEPCO spokesman said. (Reporting by Osamu Tsukimori; Writing by\u00a0<a href=\"http:\/\/blogs.reuters.com\/search\/journalist.php?edition=us&amp;n=edwina.gibbs&amp;\">Edwina Gibbs<\/a>; Editing by Joseph Radford)<\/p>\n<p><strong>Uppdatering 14:50<\/strong><\/p>\n<p>Informationen \u00e4r v\u00e4ldigt tunn \u00e4nnu. \u00a0Enligt sky news s\u00e5 finns det allts\u00e5 en fallande trend i vattenniv\u00e5erna. Men det \u00e4r allt som s\u00e4gs. N\u00e4r en reaktor \u00e4r snabbstoppad s\u00e5 \u00e5terst\u00e5r ungef\u00e4r 1% av effekten pga s\u00f6nderfall av fissionsprodukter. Det blir allts\u00e5 en resteffekt p\u00e5 runt 30 MW som m\u00e5ste kylas bort. Om man antar ett v\u00e4rsta fall d\u00e4r man m\u00e5ste f\u00f6rse kretsen med nytt vatten s\u00e5 blir det allts\u00e5 ungef\u00e4r 13 liter per sekund som ska f\u00f6ras till kretsen f\u00f6r att ers\u00e4tta det som kokas bort(f\u00f6r att koka 13 liter vatten kr\u00e4vs ungef\u00e4r 30MJ eftersom heat of vaporization av en liter vatten \u00e4r 2.26MJ). Om n\u00e5gon dieselgenerator \u00e4r ig\u00e5ng \u00e4r det en enkel match. Men ingen information finns \u00e4nnu om den nuvarande statusen f\u00f6r dieselgeneratorerna eller exakt vad som h\u00e4nder.<\/p>\n<p><strong>Uppdatering \u00a014:48<\/strong><\/p>\n<p>IAEA <a href=\"http:\/\/www.iaea.org\/newscenter\/news\/2011\/tsunamiupdate.html\">http:\/\/www.iaea.org\/newscenter\/news\/2011\/tsunamiupdate.html<\/a><\/p>\n<p><a href=\"http:\/\/www.iaea.org\/newscenter\/news\/2011\/tsunamiupdate.html\"><\/a><\/p>\n<p>The IAEA&#8217;s Incident and Emergency Centre has received information from Japan&#8217;s Nuclear and Industrial Safety Agency (NISA) that a heightened state of alert has been declared at Fukushima Daiichi nuclear power plant. NISA says the plant has been shut down and no release of radiation has been detected.<\/p>\n<p>Japanese authorities have also reported a fire at the Onagawa nuclear power plant, which has been extinguished. They say Onagawa, Fukushima-Daini and Tokai nuclear power plants were also shut down automatically, and no radiation release has been detected.<\/p>\n<p>The IAEA received information from its International Seismic Safety Centre that a second earthquake of magnitude 6.5 has struck Japan near the coast of Honshu, near the Tokai plant.<\/p>\n<p>The IAEA is seeking further details on the situation at Fukushima Daiichi and other nuclear power plants and research reactors, including information on off-site and on-site electrical power supplies, cooling systems and the condition of the reactor buildings. Nuclear fuel requires continued cooling even after a plant is shut down.<\/p>\n<p>All IAEA staff in Japan, both in the Tokyo office and in nuclear facilities, are confirmed to be safe.<\/p>\n<p><strong>Uppdatering 14:39<\/strong><\/p>\n<p>Fr\u00e5n skynews<\/p>\n<p>Japanese News Agency: 200-300 bodies found along coast of northeastern Japan following earthquake and tsunami.<\/p>\n<p>Japanese News Agency: Major explosion reported at petrochemical plant in Sendai.<\/p>\n<p><strong>Uppdatering 14:11,<br \/>\n<\/strong><br \/>\nfr\u00e5n Sky news twitter feed<br \/>\n<a href=\"http:\/\/twitter.com\/#!\/SkyNewsBreak\">http:\/\/twitter.com\/#!\/SkyNewsBreak<\/a><\/p>\n<p>Tokyo Electric Power Co confirms a &#8220;falling trend&#8221; in the water levels inside reactors at Fukushima nuclear plant.<\/p>\n<p>****<\/p>\n<p><strong>Uppdatering<\/strong><br \/>\n, JAIF har publicerat en lista p\u00e5 statusen f\u00f6r Japans alla reaktorer.<\/p>\n<p><a href=\"http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html\">http:\/\/www.world-nuclear-news.org\/RS_Massive_earthquake_hits_Japan_1103111.html<\/a><\/p>\n<p><span>JAIF issued a statement giving the status of nuclear power reactors in the effected area of Japan. This was based on various information sources, including event reports from Nisa released half an hour after the earthquake struck.<\/span><\/p>\n<table cellspacing=\"1\" cellpadding=\"1\" align=\"center\">\n<tbody>\n<tr>\n<td><strong><span>Reactor<\/span><\/strong><\/td>\n<td><strong><span>Operator<\/span><\/strong><\/td>\n<td><strong><span>Status<\/span><\/strong><\/td>\n<\/tr>\n<tr>\n<td><span>\u00a0<\/span><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Onagawa 1<\/span><\/td>\n<td><span>Tohoku<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Onagawa 2<\/span><\/td>\n<td><span>Tohoku<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Onagawa 3<\/span><\/td>\n<td><span>Tohoku<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Higashidori 1<\/span><\/td>\n<td><span>Tohoku<\/span><\/td>\n<td><span>Shut for\u00a0periodic inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daiichi 1<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daiichi 2<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daiichi 3<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daiichi 4<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Shut for\u00a0periodic inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daiichi 5<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Shut for\u00a0periodic inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daiichi 6<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Shut for\u00a0periodic inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daini 1<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daini 2<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daini 3<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Fukushima Daini 4<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Tokai<\/span><\/td>\n<td><span>Japco<\/span><\/td>\n<td><span>Automatically shutdown<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Hamaoka 3<\/span><\/td>\n<td><span>Chubu<\/span><\/td>\n<td><span>Shut for\u00a0periodic inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Hamaoka 4<\/span><\/td>\n<td><span>Chubu<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Hamaoka 5<\/span><\/td>\n<td><span>Chubu<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 1<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 2<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Not operating<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 3<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Not operating<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 4<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>Not operating<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 5<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 6<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Kashiwazaki-Kariwa 7<\/span><\/td>\n<td><span>Tepco<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><span>Tomari 1<\/span><\/td>\n<td><span>Hokkaido<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Tomari 2<\/span><\/td>\n<td><span>Hokkaido<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span>Tomari 3<\/span><\/td>\n<td><span>Hokkaido<\/span><\/td>\n<td><span>In normal operation<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span>In addition, the reprocessing plant at Rokkasho is being supplied by emergency diesel power generators.<\/span><\/p>\n<p>****************<\/p>\n<p>Ingen har nog missat att Japan idag har lidit av en enorm jordb\u00e4vning och en efterf\u00f6ljande tsunami. Minst 44 personer har mist sina liv hittills i vad som redan \u00e4r en stor tragedi.<\/p>\n<p>Redan har fr\u00e5gor b\u00f6rjat dyka upp om hur de japanska k\u00e4rnkraftverken p\u00e5verkats. Man kan ha lite \u00e5sikter om varf\u00f6r ingen bryr sig om p\u00e5verkan p\u00e5 kemiindustrin, petroliumindustrin odyl. Men den diskussionen kan sparas till ett senare tillf\u00e4lle.<\/p>\n<p>Vad vi vet just nu \u00e4r helt enkelt bara det media rapporterar. I DN ser man den olycksb\u00e5dande rubriken<br \/>\n<strong><a href=\"http:\/\/www.dn.se\/nyheter\/varlden\/jordskalv-skakar-tokyo\">Brand utbr\u00f6t i k\u00e4rnkraftverk<br \/>\n<span style=\"color: #000000; font-size: small;\"><span style=\"font-weight: normal;\"><span style=\"font-size: x-large;\"><span><strong><br \/>\n<\/strong><\/span><\/span><\/span><\/span><\/a><\/strong><\/p>\n<p>och SVD k\u00f6r med en l\u00f6pande rapportering om l\u00e4get i Japan. H\u00e4r \u00e4r de k\u00e4rnkraftsv\u00e4sentliga uppdateringarna fr\u00e5n SVD hittills. <a href=\"http:\/\/www.svd.se\/nyheter\/inrikes\/svd-rapporterar-minut-for-minut_5998923.svd\">http:\/\/www.svd.se\/nyheter\/inrikes\/svd-rapporterar-minut-for-minut_5998923.svd<\/a><\/p>\n<p>********<\/p>\n<p><strong>13.28: <\/strong>2 000 personer evakueras fr\u00e5n omr\u00e5det kring ett k\u00e4rnkraftverk i i Fukushima i Japan som f\u00e5tt problem med kylningssystemet, uppger Kyodo enligt TT.<\/p>\n<p>Japan har tidigare idag utf\u00e4rdat undantagstillst\u00e5nd p\u00e5 k\u00e4rnkraftverket.<\/p>\n<p><strong>13.06: <\/strong>Undantagstillst\u00e5nd har utlysts kring k\u00e4rnkraftverket i Fukushima, som har nedkylningsproblemen. Kabinettssekreterare Yukio Edano betonade dock att det inte r\u00e5der n\u00e5gon fara f\u00f6r personer i omgivningen, enligt TT.<\/p>\n<p>\u2013 Vi har utlyst ett k\u00e4rnkraftsn\u00f6dl\u00e4ge eftersom vi m\u00e5ste vidta alla t\u00e4nkbara \u00e5tg\u00e4rder. Men l\u00e5t mig upprepa att det inte finns n\u00e5gon radioaktiv l\u00e4cka och det kommer heller inte att bli n\u00e5gon, sade Edano p\u00e5 en presskonferens.<\/p>\n<p>\u2013 Vi uppmanar alla som bor n\u00e4ra kraftverk att agera lugnt.<\/p>\n<p><strong>12.11:<\/strong> Japan har utf\u00e4rdat undantagstillst\u00e5nd vid ett k\u00e4rnkraftverk p\u00e5 grund av problem med nedkylningsanordningen, Men det ska inte r\u00e5da risk f\u00f6r radioaktivt l\u00e4ckage, skriver AP.<\/p>\n<p>Enligt Sky News, som h\u00e4nvisar till japansa myndighetsk\u00e4llor, klarar man inte av att pumpa in nedkylningsvattnet i reaktorerna.<\/p>\n<p><strong>12.02:<\/strong> Branden i k\u00e4rnkraftsverket i Onagawa p\u00e5g\u00e5r fortfarande, och det \u00e4r oklart om det finns risk f\u00f6r radioaktivt l\u00e4ckage. I ett annat japanskt k\u00e4rnkraftverk, i Fukushima, har en automatisk nedkylningsenhet aktiverats, enligt AFP som h\u00e4nvisar till nyhetsbyr\u00e5n Kyodo.<\/p>\n<p>Svenska experter bed\u00f6mmer dock att skalvet och tsunamin inte utg\u00f6r n\u00e5gon risk f\u00f6r en k\u00e4rnkraftsolycka i n\u00e5gon av de k\u00e4rnkraftsanl\u00e4ggningar som ligger n\u00e4ra skalvomr\u00e5det.<\/p>\n<p>\u2013 Jag kopplar inte omedelbart till att det h\u00e4r skulle vara ett allvarligt hot mot s\u00e4kerheten, enligt den rapportering jag sett hittills. Jag kan inte se att det \u00e4r n\u00e5got att vara orolig f\u00f6r, s\u00e4ger Lars Gunsell, utredare vid Str\u00e5ls\u00e4kerhetsmyndigheten, till TT.<\/p>\n<p>Enligt honom \u00e4r japanska k\u00e4rnkraftverk kraftigt byggda och dimensionerade f\u00f6r att klara en jordb\u00e4vning. Individuella bed\u00f6mningar av jordb\u00e4vningsrisken g\u00f6rs f\u00f6r varje enskild anl\u00e4ggning.<\/p>\n<p><strong>10.56:<\/strong> En brand har brutit ut vid ett k\u00e4rnkraftverk i Onagawa i nord\u00f6stra Japan, uppger nyhetsbyr\u00e5n Kyodo enligt TT. Det finns ingen information om hur omfattande branden \u00e4r. Bolaget som driver k\u00e4rnkraftverket har inte rapporterat om n\u00e5gra problem vid kraftverket, uppger Reuters.<\/p>\n<p>FN:s atomenergiorgan IAEA sade samtidigt att alla k\u00e4rnkraftverk i n\u00e4rheten av skalvomr\u00e5det st\u00e4ngts av, rapporterar TT.<\/p>\n<p>******<\/p>\n<p>Det vi ved med s\u00e4kerhet \u00e4r allts\u00e5 att de drabbade reaktorerna har stoppats. Om branden vid Onagawa har n\u00e5gon s\u00e4kerhetsm\u00e4ssig p\u00e5verkan \u00e4r om\u00f6jligt att s\u00e4ga. Men det finns v\u00e4ldigt mycket som kan brinna p\u00e5 ett k\u00e4rnkraftverk som inte har n\u00e5got som helst med reaktorn att g\u00f6ra(tex branden vid Kr\u00fcmmel som fick stort genomslag i media f\u00f6r n\u00e5gra \u00e5r sen trots att den var helt ofarlig). \u00a0Eftersom ingen rapportering s\u00e4ger att det \u00e4r n\u00e5got problem med kylningen i Onagawa s\u00e5 \u00e4r branden f\u00f6rmodligen inte n\u00e5got att oroa sig f\u00f6r.<\/p>\n<p>Vad som h\u00e4nder i Fukushima har potential att vara allvarligare. Rapporteringen s\u00e4ger att de har problem med kylningen och att n\u00f6dkylningssystemen kickat ig\u00e5ng. \u00a0S\u00e5 l\u00e4nge n\u00f6dkylningssystemet fungerar som det ska \u00e4r det inte heller n\u00e5got att oroa sig f\u00f6r. Risk f\u00f6r att h\u00e4rden kommer skadas finns om n\u00f6dkylningssystemet av n\u00e5gon anledning strular, d\u00e5 kan det eventuellt leda till att br\u00e4nsle \u00f6verhettas och i det mest allvarliga fallet b\u00f6rjar sm\u00e4lta. I v\u00e4rsta fall kan det allts\u00e5 bli ett nytt Harrisburg, om man spekulerar vilt och n\u00f6dkylningsystemen havererar etc. Evakueringen \u00e4r nog i detta l\u00e4get enbart en v\u00e4ldigt konservativ s\u00e4kerhets\u00e5tg\u00e4rd.<\/p>\n<p>Det \u00e4r viktigt att po\u00e4ngtera att innan situationen kan bli en fara f\u00f6r omgivningen s\u00e5 kr\u00e4vs flera saker. N\u00f6dkylningsystemet m\u00e5ste sl\u00e5s ut och f\u00f6rbli utslaget s\u00e5 att h\u00e4rden kan sm\u00e4lta \u00e4nda tills den \u00e4tit sig igenom det tjocka st\u00e5let som utg\u00f6r reaktork\u00e4rlet. Efter det f\u00e5ngas h\u00e4rden upp i inneslutningen som \u00e4r designad f\u00f6r att kunna hantera en h\u00e4rdsm\u00e4lta, det \u00f6vertryck det ger upphov till odyl. Endast om \u00e4ven inneslutningen \u00e4r allvarligt skadad kan n\u00e5got l\u00e4cka ut. Inneslutningarna \u00e4r rigor\u00f6st designade f\u00f6r att kunna hantera jordb\u00e4vningar.<\/p>\n<p>Vi f\u00f6ljer vad som sker och kommer uppdatera bloggen l\u00f6pande.<\/p>\n<p>L\u00e4nkar<\/p>\n<p>http:\/\/dn.se\/nyheter\/varlden\/jordskalv-skakar-tokyo<br \/>\n<a href=\"http:\/\/www.bbc.co.uk\/news\/world-asia-pacific-12709598\">http:\/\/www.bbc.co.uk\/news\/world-asia-pacific-12709598<br \/>\n<\/a><a href=\"http:\/\/www.nyteknik.se\/nyheter\/bygg\/byggartiklar\/article3124064.ece\">http:\/\/www.nyteknik.se\/nyheter\/bygg\/byggartiklar\/article3124064.ece<br \/>\n<\/a><a href=\"http:\/\/www.svd.se\/nyheter\/inrikes\/svd-rapporterar-minut-for-minut_5998923.svd\">http:\/\/www.svd.se\/nyheter\/inrikes\/svd-rapporterar-minut-for-minut_5998923.svd<br \/>\n<\/a><a href=\"http:\/\/www.businessinsider.com\/fukushima-nuclear-plant-2011-3\">http:\/\/www.businessinsider.com\/fukushima-nuclear-plant-2011-3<br \/>\n<\/a><a href=\"http:\/\/www.guardian.co.uk\/world\/2011\/mar\/11\/japan-declares-nuclear-emergency-quake\">http:\/\/www.guardian.co.uk\/world\/2011\/mar\/11\/japan-declares-nuclear-emergency-quake<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uppdatering 11:59 Lite experter spekulerar p\u00e5 Reuters http:\/\/www.reuters.com\/article\/2011\/03\/12\/us-japan-quake-experts-idUSTRE72B1BP20110312 ROBIN GRIMES, PROFESSOR OF MATERIALS PHYSICS AT IMPERIAL COLLEGE LONDON &#8220;It does seem as if the back-up<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/nuclearpoweryesplease.org\/blog\/2011\/03\/11\/den-japanska-jordbavningen-och-karnkraftverken\/\">Continue reading<span class=\"screen-reader-text\">L\u00f6pande uppdateringar om den japanska jordb\u00e4vningen och k\u00e4rnkraftverken<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts\/1393"}],"collection":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/comments?post=1393"}],"version-history":[{"count":49,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts\/1393\/revisions"}],"predecessor-version":[{"id":1395,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/posts\/1393\/revisions\/1395"}],"wp:attachment":[{"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/media?parent=1393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/categories?post=1393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuclearpoweryesplease.org\/blog\/wp-json\/wp\/v2\/tags?post=1393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}